Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 238: | \[{17^{238}-1\over16}\] | 2 × 32 × 239 × 2381 × 3571 × 10949 × 16661 × 17851 × 367949 × 1749233 × 22796593 × 25646167 × 2699538733 × 22675666851559<14> × 901345518396317<15> × 19487327623903903<17> × 45957792327018709121<20> × 141080005741993552709751522464354464581431651420879<51> × 56222544577340657668398822455170499471823306626109469<53> × 250040027227104400178171567854032184062444128420008217066182482229<66> |